Where would you find the densest population in Canada? *

Which agents contribute to erosion? sunlight. shorelines. moving water. ice and glaciers. humans and animals.

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.

Soil color only reflects the amount of organic matter present in soil.